Hello,
a really old description - not working for me...

MBP-2:httrack-3.49.2 me$ ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking whether gcc understands -c and -o together... (cached) yes
checking dependency style of gcc... (cached) gcc3
checking for ANSI C header files... (cached) yes
checking build system type... x86_64-apple-darwin16.7.0
checking host system type... x86_64-apple-darwin16.7.0
checking how to print strings... printf
checking for a sed that does not truncate output... /opt/local/bin/gsed
checking for fgrep... /usr/bin/grep -F
checking for ld used by gcc...
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld
checking if the linker
(/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld)
is GNU ld... no
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 196608
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert x86_64-apple-darwin16.7.0 file names to
x86_64-apple-darwin16.7.0 format... func_convert_file_noop
checking how to convert x86_64-apple-darwin16.7.0 file names to toolchain
format... func_convert_file_noop
checking for
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld
option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... no
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for mt... no
checking if : is a manifest tool... no
checking for dsymutil... dsymutil
checking for nmedit... nmedit
checking for lipo... lipo
checking for otool... otool
checking for otool64... no
checking for -single_module linker flag... yes
checking for -exported_symbols_list linker flag... yes
checking for -force_load linker flag... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... yes
checking for gcc option to produce PIC... -fno-common -DPIC
checking if gcc PIC flag -fno-common -DPIC works... yes
checking if gcc static flag -static works... no
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker
(/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld)
supports shared libraries... yes
checking dynamic linker characteristics... darwin16.7.0 dyld
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking whether ln -s works... yes
checking whether C compiler accepts -Wparentheses... yes
checking whether C compiler accepts -Winit-self... yes
checking whether C compiler accepts -Wunused-but-set-parameter... yes
checking whether C compiler accepts -Waddress... yes
checking whether C compiler accepts -Wuninitialized... yes
checking whether C compiler accepts -Wformat=2... yes
checking whether C compiler accepts -Wformat-nonliteral... yes
checking whether C compiler accepts -Wmissing-parameter-type... yes
checking whether C compiler accepts -Wold-style-definition... yes
checking whether C compiler accepts -Wignored-qualifiers... yes
checking whether C compiler accepts -fstrict-aliasing -Wstrict-aliasing...
yes
checking whether the linker accepts -Wl,--discard-all... no
checking whether the linker accepts -Wl,--no-undefined... no
checking whether C compiler accepts -rdynamic... yes
checking whether the -Werror option is usable... yes
checking for simple visibility declarations... yes
checking size of long... 8
checking size of long long... 8
checking for in_addr_t... yes
checking for in_port_t... yes
checking for sa_family_t... yes
checking if pointers to integers require aligned access... no
checking execinfo.h usability... yes
checking execinfo.h presence... yes
checking for execinfo.h... yes
checking if zlib is wanted... yes
checking for inflateEnd in -lz... yes
checking zlib.h usability... yes
checking zlib.h presence... yes
checking for zlib.h... yes
checking for inflateEnd in -lz... (cached) yes
checking zlib in /usr... ok
checking whether to enable https support... yes
checking for EVP_get_digestbyname in -lcrypto... no
checking for SSL_CTX_new in -lssl... no
configure: error: not available
MBP-2:httrack-3.49.2 me$ make
make: *** No targets specified and no makefile found.  Stop.

What went wrong? Please help me...
Thank you in advance!
Uwe